Engine swap on 3rd gen lude

[3rdGenPrelude]

Hey.

I'm currently in the process of swapping engines on my 3rd gen prelude (my current engine died.. t_t.. had problems with not enough oil getting into the cam shaft and one thing led to another) and i found an engine from a 4th gen (h23) but it's automatic and mine's manual.. could i just get an adapter plate for the transmission? Or would there be more involved and would i be better off just buying a replacement engine (current is b20a)?

Let me know plz ^^; thanks.

[Chapman2233]

You'd be better of getting a new b20a, thats what i did when my previous engine had had enough, mine was an automatic to an automatic simple transfer basically.

[Sir_vtec]

You could do a H22 swap since theres parts produced for the swap. However it isn't cheap.

http://www.preludepower.com/forums/showthread.php?t=288172

[3rdGenPrelude]

Yeah that's basically my two options, it'd be simpler just to get a new b20a engine because as you said it's just a simple transfer.. But the h22 is so tempting *drools* lol..Yeah i'm not so concerned about the money aspect, it's just a lot of work for me and my friends to do lol. so I guess in the end it's down to whether i wanna put in a lot of work on it or just swap it over done and done. I'm going to look at engines tomorrow. whatever i do i'll throw some pics up of the work haha =p
thanks guys ^^

[Chapman2233]

b20a is an engine, h22a you'll need the engine and alot more, but as you said if money is fine go for it.

[3rdGenPrelude]

Yeah.. Well a friend of mine thinks he might be able to help me throw the h23a in =D which will be good because i'm getting it for $300 and a b20a is like roughly $600-$700.. I'm working it all out this weekend haha, any suggestions?

[Sir_vtec]

Heres one in the US with a H23 swap, and refer to the post I made above (with the link) for the parts you'll need for the swap. Good luck.
http://www.preludepower.com/forums/showthread.php?t=331907

[Nepolian]

Hey.

I'm currently in the process of swapping engines on my 3rd gen prelude (my current engine died.. t_t.. had problems with not enough oil getting into the cam shaft and one thing led to another) and i found an engine from a 4th gen (h23) but it's automatic and mine's manual.. could i just get an adapter plate for the transmission? Or would there be more involved and would i be better off just buying a replacement engine (current is b20a)?

Let me know plz ^^; thanks.

If you're worried about money, forget any swaps etc....

Buy a manual halfcut so u get all the bits!

Should be quite cheap nowadays!

[JDM-05R]

If you're worried about money, forget any swaps etc....

Buy a manual halfcut so u get all the bits!

Should be quite cheap nowadays!

aggred. if you want to keep the car in future and would want the extra power then yes a swap will be awsome. but then agian its all bout the budget.

hope you make the right choice :D

[jaybot]

H22a is a much bigger engine and weight alot more. so after swap, it be alot quicker,, but your corners... em....

[zanza34]

jaybot is correct

since by the sounds of your budget you arent going to go out and buy new shocks, struts, suspension etc so you might want to take what hes saying into account

[u mad?]

i dont think the h22 weighs much more, its just sits higher up/foward

[jaybot]

i dont think the h22 weighs much more, its just sits higher up/foward

driven one of these h22 converted 3rd gen, i have a standard b20A6 3rd gen to compare. difference for me. h22a faster and alot of low end torque. due to size of the engine bay and h22a is quite big, so it had to fit back and low in the bay. the added weight don't appear to be much on paper, but when i driven it, i felt its head heavery. and over steer by alot, thats with the upgrade suspensions and etc..
TBH i reckon h22a is not the best idea,, i've already decide to rebuild my b20a for my 3rd gen.
why you ask,
1 cheaper,
2 less problem compare to conversion.
3 if i want more power, turbo is the way to go, it would kick out more power.

[flipmods]

All the boys have good points^^^ I personally didn't feel too much weight diff with my H22 setup but maybe cause my suspension is upgraded.

Have you tried looking on Preludeaustralia.com for more info?

[jaybot]

All the boys have good points^^^ I personally didn't feel too much weight diff with my H22 setup but maybe cause my suspension is upgraded.

Have you tried looking on Preludeaustralia.com for more info?

Chris, your H22a on the 3rd gen is the god of the 3rd Gen... with so much time invested.. if you still had issues.. lol
did you finish the 5stud conversion?

[Cartoon]

H22a swap in a 3rd gen does not over all affect the handeling a great deal once you do some small up grades to the suspension. The swap has been mad much more simple these days compaired to when i did mine years ago :)

get a half cut for bulk of the parts u need then hit up some mounts and drive shafts. one key is to brace your front cross members as i cracked 2 of them in half!
The motor will sit rather low which will limit your overall height of the car and the stock suspension is way to soft to prevent you hitting the sump (cracked one of them to), U can mount the motor heigher but need a custom bonnet and then your center of gravity is higher which is where u will feel a loss in handeling.

These days to be honest u will do a h22 conversion rather cheap, well under 10k with some nice mods is easy to get done (mods would include intake, header, exhaust and such) I honestly think if u shop around it will cost u 5-7k TOPS for the swap.

Need info then let me know.

[WhiteKight]

I have also looked into this conversion and there is alot more to an engine swap than just bolting up the motor and box. Driver shafts need to be made ( Mega Buck$ ). P/S lines and A/C lines need to be made. AND THE BIG ONE IS ECU AND WIRING.

B20a are not OBDII compliant and there is a hell of a lot of messing around and time spend.

I am just going to drop a s/hand motor in mine as I also have upper valve train noise. You can pick up a B20a pretty cheap from a wrecker ( 250.00 to 300.00). I wouldn't pay anymore than that.

If you want a H23 power plant, sell you blow gen 3 on ebay and spend 5K on and gen 4 prelude and save yourself the hassels

[Sir_vtec]

I have also looked into this conversion and there is alot more to an engine swap than just bolting up the motor and box. Driver shafts need to be made ( Mega Buck$ ). P/S lines and A/C lines need to be made. AND THE BIG ONE IS ECU AND WIRING.

B20a are not OBDII compliant and there is a hell of a lot of messing around and time spend.

I am just going to drop a s/hand motor in mine as I also have upper valve train noise. You can pick up a B20a pretty cheap from a wrecker ( 250.00 to 300.00). I wouldn't pay anymore than that.

If you want a H23 power plant, sell you blow gen 3 on ebay and spend 5K on and gen 4 prelude and save yourself the hassels

Actually this swap has been made much easier.

'AZ Race' makes the mounts, 'Rywire' does the wiring, 'Raxles' makes the axles/driver shaft etc Very few components for this swap are custom. Theres a link posted above earlier of what to get and where to get them for the H22 swap.

[Cartoon]

A h22a is eazy these days,
People make mounts, make drive shafts, u cann keep ac and power steering with pully kits, its still a common swap in the USA and a H22a half cut is cheap as in comparsion to a B18c or K20.